只写if不写else，有时就算if为true也进入if体

郁闷，大千java，无奇不有

if(kk_BlacklistVehicleRegister_CheckBox3!=null)
   {
    // 录入时间
    if(kK_BlacklistVehicleRegister_LRSJ_Input==null||"".equals(kK_BlacklistVehicleRegister_LRSJ_Input)||kK_BlacklistVehicleRegister_YXQ_Input==null||"".equals(kK_BlacklistVehicleRegister_YXQ_Input))
    {
     if(kK_BlacklistVehicleRegister_LRSJ_Input==null||"".equals(kK_BlacklistVehicleRegister_LRSJ_Input))
     {
      errors.add("errorKK_BlacklistVehicleRegister",new ActionMessage("SelectPage_kK_BlacklistVehicleRegister_LRSJ_Input.null")) ;
     }
    }
    else
    {
           SimpleDateFormat bartKK_BlacklistVehicleRegister_LRSJ_Input = new SimpleDateFormat(kK_BlacklistVehicleRegister_LRSJ_Input); 
           Date KK_BlacklistVehicleRegister_LRSJ_Input_Punishment = new Date(); 
           System.out.println(bartKK_BlacklistVehicleRegister_LRSJ_Input.format(KK_BlacklistVehicleRegister_LRSJ_Input_Punishment)); 
           
           SimpleDateFormat bartKK_BlacklistVehicleRegister_YXQ_Input  = new SimpleDateFormat(kK_BlacklistVehicleRegister_LRSJ_Input); 
        Date KK_BlacklistVehicleRegister_YXQ_Input_Punishment = new Date(); 
        System.out.println(bartKK_BlacklistVehicleRegister_YXQ_Input.format(KK_BlacklistVehicleRegister_YXQ_Input_Punishment)); 

        if(KK_BlacklistVehicleRegister_LRSJ_Input_Punishment.after(KK_BlacklistVehicleRegister_YXQ_Input_Punishment))
        {
         errors.add("errorKK_BlacklistVehicleRegister",new ActionMessage("SelectPage_kK_BlacklistVehicleRegister_LRSJ_Input.compare")) ;
        }
    }
   }

 不给红字部分的if后边加else就无论true还是flase都往里进

加了空的else就没事了

else
{}